The enlarged bore sizes allow for increased airflow to support your higher horsepower needs a progressive throttle.
Ls1 throttle body vacuum lines.
This block casting number just below the rear left cylinder head.
What i finally had to do was molest every single vacuum line and lines i thought were vacuum lines until i found that it was the one right under my nose.
Those fittings are connected to coolant lines that has coolant running through the bottom of the throttle body they are not vacuum lines.
4 bolt 90mm electronic throttle body.
That is how the ls2 i have from an 08 tbss is routed.
Yes ls1 was all aluminium.
On the bottom of the throttle body there is are coolant line fittings going in and out.
The two remaining fittings on either side of the t b i capped off with vacuum line caps 1 4 inch.
On an f body reconnect the throttle cable bracket and tighten the 2 bolts to 89inch pounds.
The blue one is connected to the upper radiator hose on the dirvers side where the large hose has a y split and the smaller hose connects to the throttle body on that side.
The one at your index finger needs to attach to a fitting in your air intake after the maf but before the throttle body.
For summer time use can you bypass the coolant lines.
The elbow wasnt cheap to replace either but was cheaply made and every autoparts store wanted 30 00 for it.
Reconnect the 8 fuel injector wires reconnect the fuel vapor line to the drivers front side of the intake manifold reconnect any throttle body sensors throttle cables maf and air intake setup.
Sniper efi s new 92mm and 102mm billet aluminum ls throttle bodies give you a great way to improve engine performance without breaking the bank.
The car was in a wreck so maybe they cracked an ls2 valve cover and replaced it with an ls1 valve cover.
So i found a flexible 3 8 id fuel line and replaced it for a whopping 1 69.
In the case on the ls1 the t b never touches the engine block.
Don t let the low price fool you these are feature packed throttle bodies available in both bright silver or black anodized finishes.
As a starting point the ls1 was an eye opener for chevy fans.
6 0 cast into the.
Its all aluminum architecture made it significantly lighter than past gm v8s and power was great.
The engine was rated at 345 350 horses in the corvette depending on model year and would check in at as much as 325 hp in the f body cars.
Ls2 will have these items that an ls1 wont.
